Los Angeles County and state investigators arrested 15 people today, including a Chino Hills woman, on suspicion of stealing more than $250,000 in public assistance payments.

The suspects fraudulently collected funds for In Home Supportive Services and CalWORKS, a welfare program, officials from the Los Angeles District Attorney’s Office said.

One suspect, Corrina Martha Luna, 50, of Chino Hills, has been charged with one count of grand theft and 47 counts of forgery for allegedly engaging in IHSS fraud. She listed her sister as an IHSS provider for herself, her husband and son. But Luna’s sister said she never provided services for any of them and was unaware of Luna’s activities. Luna collected more than $13,300.

Luna and two other defendants are expected to be arraigned Wednesday in Los Angeles.

Investigators sought another 17 suspects who engaged in public assistance fraud.